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论文类型： 期刊论文

发表时间： 2015-03-01

发表刊物： INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING

收录刊物： SCIE

卷号： 25

期号： 1

页面范围： 19-25

ISSN号： 1053-5381

关键字： Focused waves; wave-current interaction; HOBEM; fully nonlinear

摘要： In this paper, a 2D numerical model for the interaction between focused waves and uniform currents is developed based on the fully nonlinear potential theory. The model is developed by using a time-domain higher-order boundary element method (HOBEM) combined with a mixed Eulerian-Lagrangian technique as a time marching process. The focused wave trains are numerically generated by a piston wavemaker on a uniform current. The proposed model is verified by comparison with the published results on monochromatic wave interaction with a current, bichromatic wave interaction with a current over a plane slope, and pure focused wave groups. The influence of the uniform current on the properties of the focused waves, including the maximum focused wave crest, shift of focal position and focal time, and spectrum bandwidth, is further studied.